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870 results about "Break point" patented technology

Self-upgrade method for equipment in remote online monitoring system

The invention belongs to the field of wireless communication, and particularly relates to a self-upgrade method for equipment in a remote online monitoring system. The method is characterized in that: each piece of terminal equipment performs self-upgrade and self-maintenance through the remote online monitoring system consisting of a terminal table tool, a data acquisition unit and a background server based on a GPRS (General Packet Radio Service). The method mainly comprises the following steps that: the background server manages an application program and version information; the data acquisition unit periodically inquires a version log and downloads a new version program; the data acquisition unit realizes self-upgrade and upgrades the terminal table tool; and after the new version program is updated successfully, skipping is performed and an old version program is still kept for later use. In the method, the GPRS, storage space management, a file sub-package mechanism, a transmission response mechanism, a mode for continuous transmission at break-points and an IAP (Internet Access Provider) program programming mode are combined, and the accuracy and reliability of data transmission are ensured; and under the condition of not influencing normal use of a user, the equipment upgrading and maintaining problems of large quantity and wide distribution are solved quickly and efficiently.
Owner:杭州先锋电子技术股份有限公司

Providing break points in a malware scanning operation

A computer virus scanning system is described in which during the scanning operation a measurement value indicative of the amount of data processing performed is calculated and this measurement value used to trigger breaks in the virus scanning operation. The triggered breaks can be used to perform a determination as to whether or not the virus scanning operations should be early terminated. One possibility is to measure the total size of the data processed during the virus scanning operation and calculate a ratio of this compared to the size of the computer file being virus scanned. If this calculated ratio exceeds a predetermined threshold, then virus scanning may be terminated. Another possibility is to associate a complexity value with each of a plurality of tests applied in the virus scanning operation. A total for these complexity values may be used to trigger the breaks and also to trigger early termination upon exceeding of respective threshold levels.
Owner:MCAFEE LLC

Method for Carrying Out a Process of Parking a Vehicle by Means of a Driver Assistance System

A method for performing an automatic parking process of a vehicle involves offering a user a selection between at least two parking maneuver for implementing by a driver assistance system in the vehicle. The first parking maneuver is a direct parking maneuver in which an automatic parking process is performed from the start position directly to the target position along the trajectory. The second parking maneuver involves providing a break point the parking trajectory so that a user can disembark the vehicle at the break point and prior to the target position.
Owner:DAIMLER AG

Automatic grading method and automatic grading equipment for read questions in test of spoken English

ActiveCN103065626ADoes not deviate from human scoringSpeech recognitionTeaching apparatusSpoken languageAlgorithm
The invention provides an automatic grading method and automatic grading equipment for read questions in a test of spoken English. According to the automatic grading method, preprocessing is carried out on input voice; the preprocessing comprises framing processing; phonetic feature is extracted from the preprocessed voice; by means of a linear grammar network and an acoustic model set up by reading texts, phonetic feature vector order is forcedly aligned to acquire information of the each break point of each phoneme; according to the information of the each break point of each phoneme, the posterior probability of each phoneme is calculated; based on the posterior probability of each phoneme, multi-dimensional grading characteristics are extracted; and based on the grading characteristics and manual grading information, a nonlinear regression model is trained by means of a support vector regression method, so that the nonlinear regression model is utilized to grade on reading of spoken English. The grading model is trained by means of expert scoring data, and therefore a result of machining grading is guaranteed not to deviate from a manual grading result in statistics, and the high simulation of a computer on the expert grading is achieved.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI +1

NURBS curve bi-directional adaptive interpolation algorithm based on S-curve acceleration and deceleration algorithm

ActiveCN107817764AGuaranteed speed smoothnessHigh precisionNumerical controlAlgorithmMotion parameter
The present invention relates to an NURBS curve bi-directional adaptive interpolation algorithm based on an S-curve acceleration and deceleration algorithm, belonging to the field of motion control. The method comprises the steps of: (1) employing an NC interpreter to obtain NURBS curve data and motion parameters; (2) performing scanning to obtain key characteristics of a NURBS curve, the key characteristics comprising breaking points of the NURBS curve, dividing the NURBS curve into blocks according to the breaking points, and calculating an arc length and a curvature of the NURBS curve of each block; dividing the blocks into sections according to curvature of each block; and (3) employing the curve data and motion parameters of each section obtained in the step (2) to obtain a feeding length of each period in each section, and finding new interpolating points. The NURBS curve bi-directional adaptive interpolation algorithm considers constraint of a curvature extreme point and curvatures in nearby areas thereof on the speed so as to ensure that a planning speed is in a constraint range and precision of speed planning and interpolation is improved; and moreover, interpolations in two directions can be accurately met, and speed smoothness of the whole interpolation process can be ensured.
Owner:SHANDONG UNIV

Forest fire fire point detection method based on MODIS

The invention discloses a forest fire fire point detection method based on an MODIS. Firstly, time sequence data is established for multiple days of MOD02 and MOD03 data from the MODIS, time sequence daily value data of multiple days of NDVI and brightness temperature is obtained, break points in the time sequence daily value data of the NDVI and brightness temperature are recognized through a time sequence break point recognition algorithm, and the recognized break points serve as potential fire points; relative fire points are distinguished from the potential fire points through a space context analysis method; real fire points are extracted from autonomous modular sensor data, the relative fire points are compared with the real fire points, and the correctness and leakage rate of the relative fire points are verified. The potential fire points are distinguished through the method that the time sequence data break points are detected through the BFAST algorithm without determining the potential fire points through fixed threshold values, therefore the algorithm has higher adaptability and flexibility for fire point distinguishing, the defects that the regional difference cannot be met by distinguishing the potential fire points through the fixed threshold values is overcome, and the fire point correctly discriminating rate is increased.
Owner:BEIJING NORMAL UNIVERSITY

Plant leaf area index measurement method based on laser radar point cloud technology

ActiveCN104457626AAffects structural propertiesAffect Radiation CharacteristicsUsing optical meansPoint cloudLidar point cloud
The invention relates to a plant leaf area index measurement method based on the laser radar point cloud technology. Compared with the prior art, the defects that the leaf area index measurement efficiency is low, and the environment requirement is high are overcome. The method comprises the following steps of obtaining three-dimensional laser point cloud data of a plant canopy, cutting the point cloud data, conducting point cloud picture classification inside the plant edge contour, calculating the half side plant volume Vhalf of each plant, counting the number of hit points, counting the proportion of breaking points, and utilizing inversion for working out leaf area indexes. According to the plant leaf area index measurement method, by means of the three-dimensional point cloud data generated through a ground laser radar measurement system, with the combination of the computer graphics technology, the leaf area indexes are obtained from point cloud pictures for calculating needed relevant parameters and conducting multiple linear regression treatment, and therefore the leaf area indexes are calculated.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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